Writing Our Own Sigils

Writing a sigil

Elixir is packed with features that make coding a joy. This chapter contains a smattering of them.

We know by now that we can create strings and regular-expression literals using sigils:

string = ~s{now is the time} 
regex = ~r{..h..}

Have you ever wished you could extend these sigils to add your own specific literal types? You can. When we write a sigil such as ~s{...}, Elixir converts it into a call to the function sigil_s. It passes the function two values:

• The first is the string between the delimiters.
• The second is a list containing any

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